William Karlsson has the hair portion of his quest to be king of the NHL down. The rest is a work in progress.

The Golden Knights’ leading scorer told me a funny story this week in the dressing room. When he was playing junior hockey in Sweden his team allowed the players to choose entrance songs, which would be played as they were introduced in pregame ceremonies.

Teenage Karlsson would take the ice every game to “I Just Can’t Wait to be King” from the Disney classic “The Lion King.”

“I was young and cocky, so I thought it was funny,” Karlsson said with a laugh as he pulled his lion’s mane of hair back while slipping on a Golden Knights toque.

If the NHL were to implement individually customized goal songs — as the Charlotte Checkers of the AHL recently did —...